 | Royal Society (Great Britain) - Mathematics - 1803 - 606 pages
...obtained from the infusions of barks ; and, in all cases, it contains a much larger proportion of tann1n, and a smaller proportion of extractive matter. When...slow method of tanning; and, though the processes of the.art may in some cases be protracted for an unnecessary length of time, yet, in general, they appear... | |
 | Industrial arts - 1803 - 548 pages
...or of catechu, it combines with a considerable proportion of extractive matter ; and in these casesi though the increase of weight of the skin is comparatively...the feeding of leather in the slow method of tanning ; fcftming ; and though the processes of the art may in some cases be protracted for an unnecessary... | |
 | Mrs. Marcet (Jane Haldimand), Sir Humphry Davy - Chemistry - 1809 - 434 pages
...manufacturer, which might have been made to enter into the composition of his leather. These observations shew, that there is some foundation for the vulgar opinion...of workmen, concerning what is technically called \hefecding of leather in the slow method of tanning ; and though the processes of the art may in some... | |
 | Mrs. Marcet (Jane Haldimand) - Chemistry - 1814 - 432 pages
...which might have been made to enter into the composition of this leather. These observations shew, that there is some foundation for the vulgar opinion...of the art may in some cases be protracted for an unnecessarylength of time, yet, in general, they appear to h?' arrived, in consequence of repeated... | |
 | Hewson Clarke, John Dougall - Drawing - 1817 - 902 pages
...there is sonic foundation for the vulgar opinion of workmen, concerning what is technically culled the feeding of leather in the slow method of tanning...a degree of perfection •which cannot be very far extend«! by means of any elucidations of theory that have as yet been known." As a vast quantity of... | |
 | Hewson Clarke, John Dougall - Drawing - 1817 - 928 pages
...manufacturer, which might have been made to enter into the composition of his leather. These observations shew that there is some foundation for the vulgar opinion...concerning what is technically called the feeding rf leather in the slow method of tanning ; and though the frocesees of the *rt may, in some cases,... | |
 | Alexander Jamleson - 1821 - 456 pages
...manufacturer, which might have been made to eater into the composition of his leather. These observations shew, that there is some foundation for the vulgar opinion...called the feeding of leather in the slow method of tunning; and though the processes of the art may in some cases be protracted for an Jinnecessary length... | |
 | Alexander Jamieson - Industrial arts - 1829 - 654 pages
...manufacturer, which might have been mnde to enter into the composition of his leather. These observations shew, that there is some foundation for the vulgar opinion...of workmen, concerning what is technically called \\\e feeding of leather in the slow method of tanning; and though the processes of the art may in some... | |
 | John Ayrton Paris - Chemistry - 1831 - 582 pages
...follows, that by quickly tanning the skin we render the leather less durable. These observations shew that there is some foundation for the vulgar opinion...feeding of leather in the slow method of tanning. Such is an outline of this interesting paper, in which the author has Q displayed the talent so characteristic... | |
 | John Ayrton Paris - 1831 - 598 pages
...follows, that by quickly tanning the skin we render the leather less durable. These observations shew that there is some foundation for the vulgar opinion...feeding of leather in the slow method of tanning. Such is an outline of this interesting paper, in which the author has Q displayed the talent so characteristic... | |
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... produces leather less durable than the leather slowly formed. Besides, in the case of quick tanning by means of infusions of barks, a quantity of vegetable extractive matter is lost to the manufacturer, which might have been made to enter into the... 
